Subtract 3/30 from 1/8
1/8 - 3/30 is 1/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
1/8 = 1 × 15/8 × 15 = 15/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
3/30 = 3 × 4/30 × 4 = 12/120 - Subtract the two like fractions:
15/120 - 12/120 = 15 - 12/120 = 3/120 - After reducing the fraction, the answer is 1/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/8-3/30 1/8-6/30 1/16-3/30 1/8-3/60 3/8-3/30 1/8-9/30 1/24-3/30 1/8-3/90 5/8-3/30 1/8-15/30 1/40-3/30 7/8-3/30 1/8-21/30 1/56-3/30